Gas cylinder magazine

ABSTRACT

A gas cylinder magazine contains a body which includes an accommodation chamber, a pressure valve, and a control valve. The accommodation chamber is configured to receive a high-pressure gas cylinder. A stabbing portion is located above the accommodation chamber, and a first conduit is defined in the body beside the stabbing portion. The pressure valve is fixed in the body above the accommodation chamber. An axis of the pressure valve is intersected with an axis of the high-pressure gas cylinder. The body further includes an air guide room defined on the pressure valve. The control valve is located beside the air guide room and is connected with an air discharge chamber, a discharging ring and a nozzle of the gas cylinder magazine. The control valve guides the high-pressure gas to the discharging ring via the air discharge chamber so that a BB bullet is shot from the nozzle.

FIELD OF THE INVENTION

The present invention relates to a gas cylinder magazine which has apressure valve of a small size and is capable of adjusting a pressure.

BACKGROUND OF THE INVENTION

A conventional air-pressure BB gun contains a magazine for receiving BBbullets. The magazine also contains a vaporizing space which is filledwith liquid gas to generate air pressure. After the gas valve isstarted, the gas in the vaporizing space is released upward, and the BBbullets are pushed to a nozzle so as to be shot via a barrel.

Because the liquid gas is filled in the conventional magazine, pollutionwill occur. To overcome such a problem, a gas cylinder magazine isapplied to replace the conventional magazine so that CO₂ of thehigh-pressure cylinder is released to shoot the BB bullets by using agas pressure.

A magazine of a high-pressure cylinder is disclosed in U.S. Pat. No.7,237,543 and contains a body 50, and the body 50 includes anaccommodation chamber 501 configured to receive a high-pressure cylinder40, a pressure reducing valve 51 is accommodated in the body 50 abovethe accommodation chamber 501, and a piercing element 511 isaccommodated in the body 50 facing the accommodation chamber 501, suchthat after the high-pressure cylinder 40 is forced into theaccommodation chamber 501 to pierce an open end 41 of the high-pressurecylinder 40, and the high-pressure gas is released to flow through anconduit of the piercing element 511. The accommodation chamber 501 has acap 54 covered on an opening of a bottom thereof, and the pressurereducing valve 51 has a separator 52 and a piston 521 moving between theseparator 52 and the pressure reducing valve 51, wherein an air channelis defined in a center of the piston 521 and communicates with thehigh-pressure cylinder, such that the piercing element 511 pierces thehigh-pressure cylinder 40 to release the gas to flow into a second airchamber 502 of the pressure reducing valve 51 relative to the piston521, wherein the second air chamber 502 of the separator 52 has twoorifices 523 defined above the piston 521, and a press spring 522 isreceived in the second air chamber 502 of the separator 52 and thepiston 521 so that the piston 521 is pushed by the press spring 522 tomove to the second air chamber 502 and is pressed by the gas of thehigh-pressure cylinder 40 to pass through the air channel of the piston521, wherein the gas accumulates in the second air chamber 502 and thepiston 521 to produce an internal pressure, and the internal pressure isdischarged out of the two orifices 523 upward.

The body 50 further includes a first air chamber 503 defined above theseparator 52, and the pressure accumulates in the first air chamber 503after the internal pressure is discharged out of the two orifices 523upward. When the pressure increases to a predetermined pressure value,the press spring 522 of the second air chamber 502 urges the piston 521to balance the pressure from the high-pressure cylinder 40 via thepiercing element 511, and the piston 521 stop the conduit of thepiercing element 511 to produce airtightness and to stop the pressureincreasing from the high-pressure cylinder 40, hence the pressure of thefirst air chamber 503 maintains at the predetermined pressure value.

The first air chamber 503 of the body 50 communicates with the controlvalve 30 via a passing orifice, wherein the control valve 30 iscommunicated when the body 50 is accommodated in the handle of a BB gun,and the gas flows through the top of the body 50 to push the BB bulletsto shoot via the barrel.

However, the magazine of the high-pressure cylinder of U.S. Pat. No.7,237,543 has following defects:

-   -   1) The piston 521 and the press spring 522 are accommodated in        the second air chamber 502 longitudinally and contact with a        stop end of the piercing element 511, so when the gas flowing        through the piercing element 511 from the high-pressure cylinder        40 is balanced with the pressure between the second air chamber        502 and the first air chamber 503, the pressure of the        high-pressure cylinder 40 has to deduct an elasticity value of        the press spring 522, thus causing imbalance of a top and a        bottom of the piston 521. The downward elasticity of the press        spring 522 offsets a release value of the pressure of the        high-pressure cylinder 40, and after the high-pressure cylinder        40 releases the pressure repeatedly, the press spring 522 moves        downward to release the pressure from the high-pressure cylinder        40 early. But the pressure is released from the high-pressure        cylinder 40 greatly, so the stop end of the piercing element 511        and the piston 521 cannot be connected tightly, thus losing the        gas and having insufficient pressure when shooting the BB        bullets.    -   2) The piston 521 and the press spring 522 of the second air        chamber 502 contacts with the stop end of the piercing element        511 longitudinally, so the internal space of the magazine 50 is        occupied largely, and a length of the body 50 has to be        increased to mate with a size of the piston 521 and the press        spring 522, thus having an increased size and fabrication cost.

The present invention has arisen to mitigate and/or obviate theafore-described disadvantages.

SUMMARY OF THE INVENTION

The primary aspect of the present invention is to provide a gas cylindermagazine by which the axis of the pressure valve is intersected with theaxis of the high-pressure gas cylinder so that the pressure valve moveshorizontally, and the high-pressure gas of the air gun is not pushed bythe spring and the valve to control the pressure of the air gunaccurately, and the elasticity of the second spring is more than theelasticity of the first spring so that the switching of the airinflation and airtightness produce exactly and quickly, thus shootingthe BB bullet from the air gun at a high speed.

Another aspect of the present invention is to provide a gas cylindermagazine by which the pressure valve of the gas cylinder magazine isadjusted by the rotation element to drive the second spring to push thedefining segment, and the drive valve is actuated by the definingsegment to control the pressure of the intake room to reach an airtightpressure value based on the using requirements exactly, and the pressurevalve is received in the gas cylinder magazine horizontally to reduce asize of the gas cylinder magazine and to adjust the pressure of the airgun.

To obtain the above aspects, a gas cylinder magazine provided by thepresent invention contains: a body, and the body including: anaccommodation chamber, a pressure valve, and a control valve.

The accommodation chamber is defined in a lower end of the body and isconfigured to receive a high-pressure gas cylinder, a stabbing portionextends downward and is located above the accommodation chamber of thebody, and a first conduit is defined in the body beside the stabbingportion. The stabbing portion pierces an opening of the high-pressuregas cylinder to release high-pressure gas to flow to the first channelupward.

The pressure valve is fixed in the body above the accommodation chamber,and an axis of the pressure valve is intersected with an axis of thehigh-pressure gas cylinder, such that the pressure valve is operatedhorizontally in the gas cylinder magazine, and the high-pressure gasflowing through the pressure valve is not pressed by a spring or avalve. The body further includes an air guide room defined on thepressure valve.

The control valve is located beside the air guide room and is connectedwith an air discharge chamber, a discharging ring and a nozzle of a topof the gas cylinder magazine. The control valve guides the high-pressuregas to the discharging ring via the air discharge chamber so that a BBbullet is shot from the nozzle.

Furthermore, a gas cylinder magazine provided by the present inventioncontains a body, and the body includes an accommodation chamber, apressure valve, and a control valve.

The pressure valve has an adjustment portion above the accommodationchamber, and the pressure valve has an intake room defined beside theadjustment portion. A fixing element is locked in the intake room of theadjustment portion and has a holding space defined on a center thereof,the fixing element has a connection orifice defined in the holding spaceand communicating with the intake room, a distance is defined betweenthe fixing element and the rotation element, and the rotation elementhas a positioning trench defined in an end thereof facing the fixingelement. The intake room has a first channel communicating with theaccommodation chamber downward, a drive valve screwed with a definingsegment of the fixing element from the intake room via the connectionorifice of the fixing element. After the drive valve and the definingsegment are connected, a first spring is received in the intake roombeside the drive valve, and a second spring abuts against the definingsegment and is received in the positioning trench with respect to thefixing element, such that the second spring contacts with the definingsegment and the positioning trench with respect to the fixing element.An air conducting trough surrounds around the fixing element, and thebody further includes a second channel defined above and communicatingwith the air conducting trough, and the second channel is also incommunication with the control valve via the air guide room.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross sectional view of a conventional magazine.

FIG. 2 is a perspective view showing the assembly of a gas cylindermagazine M according to a preferred embodiment of the present invention.

FIG. 3 is a cross sectional view taken along the line A-A′ of FIG. 2 .

FIG. 4 is a side plan view showing the operation of a part of the gascylinder magazine M according to the preferred embodiment of the presentinvention.

FIG. 5 is a cross sectional view showing the operation of a part of thegas cylinder magazine M according to the preferred embodiment of thepresent invention.

FIG. 6 is another cross sectional view showing the operation of a partof the gas cylinder magazine M according to the preferred embodiment ofthe present invention

FIG. 7 is another cross sectional view taken along the line A-A′ of FIG.2 .

FIG. 8 is also another cross sectional view sectional view showing theoperation of a part of the gas cylinder magazine M.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 2 is a perspective view showing the assembly of a gas cylindermagazine M according to a preferred embodiment of the present inventioncomprises: a pressure valve V having a small size and configured toexchange gas accurately, as shown in FIG. 1 , the gas cylinder magazineM comprises a body 10 and is configured to mate with an air gun or othertypes of guns, and the body 10 includes a control valve 30 configured toconduct the gas of the air guns, the pressure valve V fixed below thecontrol valve 30 and having a rotation element 20 which is received inan aperture of a side of the gas cylinder magazine M, wherein therotation element has a hexagonal hole 201 defined on an outer wallthereof and configured to accommodate a rotatable drive tool.

FIG. 3 is a cross sectional view taken along the line A-A′ of FIG. 2 .The body 10 further includes an accommodation chamber 101 defined in alower end thereof and configured to receive a high-pressure gas cylinder40, a separator 15 mounted in the body above the accommodation chamber101 and having a stabbing portion 151 extending downward from a centerof the separator 15, wherein the stabbing portion 151 is forced into theaccommodation chamber 101 to pierce an opening 41 of the high-pressuregas cylinder 40 so that high-pressure gas is discharged out of a firstconduit 110 of the body 10 upward from the high-pressure gas cylinder 40via the stabbing portion 151, and the body 10 further includes a cap 13configured to cover an outlet of a bottom of the accommodation chamber101. The body 10 includes the pressure valve V above the separator 15,wherein an axis W of the pressure valve V is intersected with an axis Lof the high-pressure gas cylinder 40, such that the pressure valve V isoperated in the gas cylinder magazine M horizontally and has a lowestheight ratio to the gas cylinder magazine M, and the pressure valve Vhas a pressure balance of two springs to obtain a switching of airinflation accurately. The pressure valve V facilitates an adjustment ofintake distance outside the gas cylinder magazine M, thus adjusting ashooting force based on using requirements. The body 10 further includesan air guide room 121 defined on the pressure valve V, and the body 10includes the control valve 30 located beside the control valve 30,wherein the control valve 30 conducts the high-pressure gas after thegas cylinder magazine M is accommodated in the air gun, and thehigh-pressure gas flows to a discharging ring 123 via an air dischargechamber 122 so that a BB bullet is shot from a nozzle 1021 of a top ofthe gas cylinder magazine M. The gas cylinder magazine M furthercomprises a receiving groove 102 defined below the nozzle 1021 andconfigured to accommodate the BB bullet, multiple push elements 14′, 14configured to push another BB bullet toward the nozzle 1021 after the BBbullet is stricken, wherein the push elements 14 is limited in thereceiving groove 102 and slides upward and downward in a track 1022 ofthe gas cylinder magazine M.

FIG. 4 is a side plan view showing the operation of a part of the gascylinder magazine M according to the preferred embodiment of the presentinvention. FIGS. 5 and 6 are a cross sectional view showing theoperation of a part of the gas cylinder magazine M according to thepreferred embodiment of the present invention, wherein the pressurevalve V has an adjustment portion 11 above the accommodation chamber101, and the pressure valve V has an intake room 111 defined beside theadjustment portion 11, wherein a fixing element 22 is locked in theintake room 111 of the adjustment portion 11 and has a holding spacedefined on a center thereof, a diameter of the holding space of thefixing element 22 is more than a diameter of the intake room 111, andthe fixing element 22 has a connection orifice defined in the holdingspace and communicating with the intake room 111. A distance is definedbetween the fixing element 22 and the rotation element 20, and therotation element 20 has a positioning trench 202 defined in an endthereof facing the fixing element 22, wherein the intake room 111 has afirst channel 110 communicating with the accommodation chamber 101downward, a drive valve 23 screwed with a defining segment 231 of thefixing element 22 from the intake room 111 via the connection orifice ofthe fixing element 22, wherein after the drive valve 23 and the definingsegment 231 are connected, a first spring 25 is received in the intakeroom 111 beside the drive valve 23, and a second spring 21 abuts againstthe defining segment 231 and is received in the positioning trench 202with respect to the fixing element 22, such that the second spring 21contacts with the defining segment 231 and the positioning trench 202with respect to the fixing element 22, wherein an elasticity of thesecond spring 21 is more than an elasticity of the first spring 25 sothat a pressure of the intake room 111 is small, the second spring 21pushes the defining segment 231 to actuate the drive valve 23 to movetoward and turn on the intake room 111, when the pressure of the intakeroom 111 increases to a predetermined value and the elasticity of thefirst spring 25 is more than the elasticity of the second spring 21, thedefining element 231 is urged to drive the coupling element 23 to movetoward the rotation element 20, thus producing air tightness. An airconducting trough 112 surrounds around the fixing element 22, and thebody 10 further includes a second channel 113 defined above andcommunicating with the air conducting trough 112, and the second channel113 is also in communication with the control valve 30 via the air guideroom 121.

FIG. 7 is another cross sectional view taken along the line A-A′ of FIG.2 . FIG. 8 is another cross sectional view sectional view showing theoperation of a part of the gas cylinder magazine M. The second channel113 of the gas cylinder magazine M moves into the control valve 20 viathe air guide room 121, wherein the body 10 further includes a threadedorifice 13 defined therein beside the air guide room 121, communicatingwith the air discharge chamber 122 upward, and configured to screw withthe control valve 30. The control valve 30 includes a cylinder 32screwed in the threaded orifice 13 and connected with the air guide room121, wherein the cylinder 32 has an air orifice 321 defined on anintermediate section thereof and communicating with the air dischargechamber 122 upward, the intermediate section of the cylinder 32 isstepped and has a stepped rod 31 received therein, wherein a profile ofthe stepped rod 31 mates with a profile of the cylinder 32, and thestepped rod 31 has a protrusion 311, a closing segment 312, and a stopportion 313, a driving spring 33 is fitted on the stepped rod 31, abutsagainst the protrusion 311 and the cylinder 32, and pushes the rod 31 tomove outward. The closing segment 312 is configured to limit a movementof the cylinder 32, and the stop portion 313 is pushed by the drivingspring 33 to contact with and close the cylinder 32.

When the air gun is triggered, as shown in V1 of FIG. 5 , the axis ofthe pressure valve V is intersected with the axis of the high-pressuregas cylinder 40 so that the pressure valve V moves horizontally. Whenthe pressure of the intake room 111 is small, the second spring 21pushes the defining segment 231 to actuate the drive valve 23 to movetoward and turn on the intake room 111, and the high-pressure gas AF1 isforced by the drive valve 23 to flow into the air guide room 121 fromthe first channel 110 via the air conducting trough 112 and the secondchannel 113, thus increasing the pressure of the intake room 111.Referring to V2 of FIG. 6 , when the pressure of the intake room 111 isincreased to the predetermined value and the elasticity of the firstspring 25 is more than the elasticity of the second spring 21, thedefining element 231 is urged to drive the coupling element 23 to movetoward the rotation element 20 and to stop the high-pressure gas AF2,thus inflating the gas. As illustrated in S of FIG. 8 , when the gascylinder magazine M is received in a handle of the air gun, the controlvalve 30 is started to drive the rod 31 to move to the air guide room121, and the closing segment 312 is opened so that the high-pressure gasof the air guide room 121 is inflated to air discharge chamber 122 viathe air orifice 321 of the cylinder 32, thus shooting the BB bullet.

Accordingly, the gas cylinder magazine M of the present invention hasadvantage as follows:

-   -   1) The axis of the pressure valve V is intersected with the axis        of the high-pressure gas cylinder 40 so that the pressure valve        V moves horizontally, and the high-pressure gas of the air gun        is not pushed by the spring and the valve to control the        pressure of the air gun accurately. Preferably, the elasticity        of the second spring 21 is more than the elasticity of the first        spring 25 so that the switching of the air inflation and        airtightness produce exactly and quickly, thus shooting the BB        bullet from the air gun at a high speed.    -   2) When inflating the gas to the air gun in various areas,        temperatures and pressures, different pressures of the air gun        produce. For example, when inflating the gas to the air gun at a        high temperature, the pressure of the air gun increases. While        inflating the gas to the air gun at a low temperature, the        pressure of the air gun is insufficient. The pressure valve V of        the gas cylinder magazine M is adjusted by the rotation element        20 to drive the second spring 21 to push the defining segment        231, and the drive valve 23 is actuated by the defining segment        231 to control the pressure of the intake room 111 to reach an        airtight pressure value based on the using requirements exactly.        Preferably, the pressure valve V is received in the gas cylinder        magazine M horizontally to reduce a size of the gas cylinder        magazine M and to adjust the pressure of the air gun.

While the preferred embodiments of the invention have been set forth forthe purpose of disclosure, modifications of the disclosed embodiments ofthe invention as well as other embodiments thereof may occur to thoseskilled in the art. The scope of the claims should not be limited by thepreferred embodiments set forth in the examples, but should be given thebroadest interpretation consistent with the description as a whole.

What is claimed is:
 1. A gas cylinder magazine comprising a body (10),and the body (10) including: an accommodation chamber (101) defined in alower end of the body (10) and configured to receive a high-pressure gascylinder (40), a stabbing portion (151) extending downward and locatedabove the accommodation chamber (101) of the body (10), a first conduit(110) defined in the body (10) beside the stabbing portion (151),wherein the stabbing portion (151) pierces an opening (41) of thehigh-pressure gas cylinder (40) to release high-pressure gas to flow tothe first channel (110) upward; a pressure valve (V) fixed in the body(10) above the accommodation chamber (101), wherein an axis (W) of thepressure valve (V) is intersected with an axis (L) of the high-pressuregas cylinder (40), such that the pressure valve (V) is operatedhorizontally in the gas cylinder magazine (M), and the high-pressure gasflowing through the pressure valve (V) is not pressed by a spring or avalve, and the body (10) further includes an air guide room (121)defined on the pressure valve (V); a control valve (30) located besidethe air guide room (121) and connected with an air discharge chamber(122), a discharging ring (123) and a nozzle (1021) of a top of the gascylinder magazine (M), wherein the control valve (30) guides thehigh-pressure gas to the discharging ring (123) via the air dischargechamber (122) so that a BB bullet is shot from the nozzle (1021).
 2. Thegas cylinder magazine as claimed in claim 1 further comprising areceiving groove (102) defined below the nozzle (1021) and configured toaccommodate the BB bullet, wherein a push element (14) pushes the BBbullet to the nozzle (1021) upward.
 3. A gas cylinder magazinecomprising a body (10), and the body (10) including an accommodationchamber (101), a pressure valve (V), and a control valve (30); whereinthe pressure valve (V) has an adjustment portion (11) above theaccommodation chamber (101), and the pressure valve (V) has an intakeroom (111) defined beside the adjustment portion (11), wherein a fixingelement (22) is locked in the intake room (111) of the adjustmentportion (11) and has a holding space defined on a center thereof, thefixing element (22) has a connection orifice defined in the holdingspace and communicating with the intake room (111), a distance isdefined between the fixing element (22) and the rotation element (20),and the rotation element (20) has a positioning trench (202) defined inan end thereof facing the fixing element (22), wherein the intake room(111) has a first channel (110) communicating with the accommodationchamber (101) downward, a drive valve (23) screwed with a definingsegment (231) of the fixing element (22) from the intake room (111) viathe connection orifice of the fixing element (22), wherein after thedrive valve (23) and the defining segment (231) are connected, a firstspring (25) is received in the intake room (111) beside the drive valve(23), and a second spring (21) abuts against the defining segment (231)and is received in the positioning trench (202) with respect to thefixing element (22), such that the second spring (21) contacts with thedefining segment (231) and the positioning trench (202) with respect tothe fixing element (22), wherein an air conducting trough (112)surrounds around the fixing element (22), and the body (10) furtherincludes a second channel (113) defined above and communicating with theair conducting trough (112), and the second channel (113) is also incommunication with the control valve (30) via the air guide room (121).4. The gas cylinder magazine as claimed in claim 3, wherein the controlvalve (30) is connected with an air discharge chamber (122), adischarging ring (123) and a nozzle (1021) of a top of the gas cylindermagazine (M).
 5. The gas cylinder magazine as claimed in claim 4,wherein a receiving groove (102) is defined below the nozzle (1021) andis configured to accommodate the BB bullet, and a push element (14)pushes the BB bullet to the nozzle (1021) upward.
 6. The gas cylindermagazine as claimed in claim 3, wherein an elasticity of the secondspring (21) is more than an elasticity of the first spring (25) so thata pressure of the intake room (111) is small, and the second spring (21)pushes the defining segment (231) to actuate the drive valve (23) tomove toward and turn on the intake room (111), when the pressure of theintake room (111) increases to a predetermined value and the elasticityof the first spring (25) is more than the elasticity of the secondspring (21), the defining element (231) is urged to drive the couplingelement (23) to move toward the rotation element (20), thus producingair tightness.